Safety device for refrigerator-machines.



M. LUPiNSKI.

SAFETY DEVICE FOR RE'FRiGERATGR MACHINES, APPLICATION FILED MAY 24. 1912.

Patented Oct. 1, 1918.

flttormegs,

max aormskz, on mnwnuknn, Wisconsin.

nEvicn non. mumm s-mom a 1&805259.

Specification of Letters Patent.

7 Patented Oct. 1, 1918.

' Application one my senate. senses-532mm.

To all whom it may concern! Be it known that 1, MAX 'Lnrmsnr, a citizen of the United Stetesresiding etMiL waukee, county of Milwaukee, and State of Wisconsin, have invented new and useful Improvemetfts in Safety Devices for RefrigerzitnnMafihinesnf "which the following is a specification.

My invention relates to improvements in safety deviees'for refrigerator machines.

I am aware of'the fact that the cylinder heads on the pipes of 'refrigerator'ninchines stmnerimes break, in which case emmonia', or other gas, undergrent pressure, escapesvery rapidly and it becomes very difiienlt orirnpossihl e to stop the escape ofisuchges.

The object of my present invention is theretoreto provide an automatic device for immediately stopping the escape'of such gas the ins'tent the compressor heads blowout, or any of the pipes connected with'snchpcoinpressor lorealc.

My invention is further explained reference to the accompanying drawings", in which- V Figure 1 is a side view of the device, in which automatic closing valves are shown in connection with the compressor."

Fig. 2 is 3 section of the safety 'valves shown in Fig. "i, and

Fig. 3 is everti'cal section of one of the valves shovvnin Fig. 2, drawn ntright angles thereto.

Like parts are 'identifiedhy the some reference numerals throughout the several views. 7 i

'1 is a compressor cylinder of ordinary constructiom The compressed g'u s is'led to the compression cylinder 1 throu h the duct 2, valve chamber 3 past the va vc 1., through duct 5, valve 6, duct 7 and from thence through the T 8, branches 9 and T0 to the of the cylinder .1. W It .Wlll 7 that should' either of the heads 11 or 12 olow out, or become broken;

respective ends new be obvious motion will be communicated from such heads through one of the rods 13 or 1 1 to the T-shaped lever 15, when such motion will be simultaneously transmitted from such lever 15 through the arm 16, connecting rod 17 to the stop lever 18, whereby the opposite end of said lever 18 will be simultaneously Withdrawn from the notch 19' formed in the reciprocating bar 20, when said bar will be acted upon by the lever 21, cord 22 and welght 23, whereby the valves 4 21111131 will he instisntnne'ollsly closed: and whereby the further escape of gas is pre vented.

' opposite side of the piston, and which is beded frorn'said cylinder through the ducts 24 311612541 26, duct 2 to the velve's gdnct valve chamber '30 and past said valve h lfisnch grus'ivill he eneestopped; The

ci 'li'nder is ccnnect'ed to stop lever 18 throughthe Tods lS end 14; T lever 15, arm

T6 and rod '1 and said lever 18, whereby hotshot said valves 4 and will be simultaneously closed by the of said weight '23, acting through said cord 22 and lever 21.

in view of the fect that said lever 21 describes a partial circle es it is operated, it is provided atoneend with a slot 31 which is'connect ed withsaidhur 20 by a. pin 32. The bar 20 is connected with said velfve' 4 and 31 through the levers 33 and em-{said levers 33 and 34 rue conne'ried with the valve stems 35 and 36, through the slots'37 and 38, end'shafts 3.7 and 38'.

In View o -Ethe fact that the valve 31 is held openbv thecsc'aping gas while the valve d is romeo toward its seat by the inlet pressure of .gas git hecornes necessary or exlever by the pivotal bolt 41; while the lever 18 is connected with the bracket 42 by the pivotal bolt 43, and atits opposite end with the T-shaped lever 15, through the pivotal bolt 41. The lever 21 is connected with the bracket by the pivotal bolt 51. The T-shztped lever 15 is connected with the bracket. 48 by the pivotal bolt 49.

The levers 33 and 34 are located upon the inside of the valve chamber, and connected with the reciprocating rod or bar 20 b the arms 46 and 47, which arms 46 and 4 are upon the outside of said valve chambers, whereby when said rod 20 is moved in either direction motion will be communicated therefrom to said valves 4 and 31' through said rods 37' and 38, arms 33 and 34 and valve stems 35 and 36.

It will, of course, be understood that the cylinder heads 11 and 12 are adapted to be secured to the cylinder 1, and the two parts of the valve hambers 3 and 30 are connected together by bolts in the ordinary manner, although such bolts are not shown. It will, of course, be understood that the cylinder 1 is provided with a piston of ordinary construction, although the same is not shown, and that the piston rod 52 is connected therewith in the ordinary manner.

It will also be understood that when the piston, not shown, moves toward the left gas will be drawn into said cylinder through said ducts, and the valves connected therewith entering the said cylinder through the duct 9, and that as said piston moves toward the right gas will be drawn into the opposite end of said cylinder through the duct 10; that as gas is thus drawn into the respective ends of said cylinder it is simultaneously forced out of the opposite end of said cylinder. As the said piston moves toward the right the gas passes out through the duct 25, and as said piston moves toward the left the gas passes out through the duct 24, escaping as indicated by the arrows.

Having thus described my invention what I claim as new and desire to secure by Let ters Patent, is

1. The combination with the respective ends of a gas compressing cylinder, of inlet and outlet ducts, two check valves, one for controlling the admission of gas to and the other the escape of as from said cylinder, a reciprocating va ve rod, means for connecting such rod to said valves, means for rigidly holding said valves in their open position, and means for simultaneously releasing said valve rod and valves in case either one of said cylinder heads should become broken or blown out, whereby both of said valves will be at once closed, and the further escape of gas stopped.

2. The combination with the respective ends of a gas compressing cylinder, of inlet and outlet ducts, two check valves, one for controlling the admission of gas to and the other the escape of gas from said cylinder, a reciprocating valve rod, means for connecting such rod to said valves, means for rigidly holding said valves in their open position, means for simultaneously releasing said valve rod and valves in case either one of said cylinder heads should become broken or blown out, whereby both of said valves will be at once closed, and the further escape of gas stopped, said closing means comprising a lever, and a flexible connection connected at one end to one end of said lever and at its opposite end to a gravity actuated weight, whereby as said reciprocating valve rod is released said valves will be both automatically closed by the downward movement of said weight.

3. The combination of a cylinder, arms connected with the respective heads of said cylinder, a pair of valves, one for controlling the admission of gas to and the other for controlling the discharge of gas from said cylinder, means for holding said valves in their open position, and means for connecting said valves and said arms together, whereby as either of said cylinder heads become broken or blown out both of said valves will be simultaneously closed.

4. The combination of a cylinder, arms connected with the respective heads of said ylinder, a pair of valves, one for controlling the admission of gas to and the other for controlling the discharge of gas from said cylinder, means for holding said valves in their open position, means for connecting said valves and said arms together, whereby as either of said cylinder heads become broken or blown out both said valves will be simultaneously closed, and a pair of springs, each of which is connected at one end to a fixed point and at its opposite end to said reciprocating rod, whereby said reciprocating rod is adapted to be so controlled by the tension of said springs that it may be moved with the same resistance in either direction.

In testimony whereof I aflix my signature in the presence of two witnesses.

MAX LUPINSKI.

Witnesses:

O. C. WEBER, JAB. B. Eawm.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

